Linux bash删除文件中含“指定内容”的行功能示例

本文实例讲述了Linux bash删除文件中含“指定内容”的行功能。分享给大家供大家参考,具体如下:

#!/bin/sh

# 功能: 删除文件中含"指定内容"的行

# 运行方式: ./dline.sh c.log ==> 产生输出文件: c.log0

array=(

"rm -f lvr_3531_pf_new"

"arm-hisiv100-linux-gcc "

"In function "

"excess elements in array initializer"

"warning: multi-line comment"

"embedded '\\0' in format"

"__NR_SYSCALL_BASE"

"this is the location of the previous definition"

"dereferencing type-punned pointer will break strict-aliasing rules"

"differ in signedness"

"but argument is of type"

"implicit declaration of"

)

if [ $# -lt 1 ]; then

echo "Usage: $0 <logfile>"

exit

fi

file="$1"0

cp -f $1 $file

function deleteLine()

{

sed "/$1/d" $file > tmp

mv -f tmp $file

}

wc -l $file

for line in "${array[@]}"

do

if [ ${#line} -gt 0 ] && [ ${line:0:1} != "#" ]; then

deleteLine "$line"

fi

done

wc -l $file

运行情况:

[feng@bash #69]$./dline.sh c.log

556 c.log0

63 c.log0

[feng@bash #70]$

希望本文所述对大家bash shell学习有所帮助。

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